. The Street railway journal . all been decided upon kind showing better fitting and greater strength than whendone in any other method. To o^-ercome the difficulties found in the ordinary methodsof Building Machinery and to secure freedom from the in-evitable looseness of joints and constant repairs which it en-tails, Mr. Peckham decided that the only method was to treatthe truck as a machine and manufacture it accordingly, em-ploying machine fits at every working joint to prevent lostmotion. This result has been accomplished by the use of specialmachinery and tools made expressly for the pur
. The Street railway journal . all been decided upon kind showing better fitting and greater strength than whendone in any other method. To o^-ercome the difficulties found in the ordinary methodsof Building Machinery and to secure freedom from the in-evitable looseness of joints and constant repairs which it en-tails, Mr. Peckham decided that the only method was to treatthe truck as a machine and manufacture it accordingly, em-ploying machine fits at every working joint to prevent lostmotion. This result has been accomplished by the use of specialmachinery and tools made expressly for the purpose. The Peck-ham truck, as now constructed, is a strictly machine-made ormanufactured article like a sewing machine or rifle. After having taken up the general principles involved in astreet railway truck and showing how the problems have beensolved it would be of interest to describe at some length twotrucks recently designed by Mr. Peckham, one for electric andthe other for cable work. Fig. 2 shows the truck as constructed. SireH ily. Juurital FIG. 2—SIDE AND TOP VIEW OF CABLE CAR TRUCK-THE PECKHAM MOTOR TRUCK AND WHEEL COMPANY. and the best designs secured, the qualities of mechanical con-struction and manufacture come up for consideration. Tobuild one part at a time is easy, calls for but small consideratiorof details and makes each article turned out an independentmachine without standards, and to some extent, dependent for itsworkmanship on the individuals that happen to be employe<]|upon it. To manufacture, in the American sense of the word, de-mands the most rigid correctness in the design of the details, alarge and perfect plant organized in such a manner as to enablj!each part to be turned out in quantities identically the same. Iilthe manufacture of the Peckham truck every joint, bearing andbolt hole is fitted, planed or bored to steel templets. Bolts areturned to standards and bolt holes reamed to a driving fit as instandard locomotive work. In addition brake
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
